| Name | Carex lupulina var. polystachya Schweinitz & Torrey |
| Authorship | Schweinitz & Torrey |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex lupulina Muhlenberg ex Willdenow |
| GUID | urn:lsid:ipni.org:names:46549-2 |
| Citation | 1825 Ann. Lyceum Nat. Hist. New York 1: 337 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Carex lupulina var. polystachya Schweinitz & Torrey |
| Identification made in | [no date] (1) |
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